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157025-71-3

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157025-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157025-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,0,2 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 157025-71:
(8*1)+(7*5)+(6*7)+(5*0)+(4*2)+(3*5)+(2*7)+(1*1)=123
123 % 10 = 3
So 157025-71-3 is a valid CAS Registry Number.

157025-71-3Downstream Products

157025-71-3Relevant articles and documents

Acyclic nucleosides: Synthesis of 1-[(1-hydroxy-2-propoxy)methyl]thymine, 6-azathymine, uracil, and 6-azauracil as potential antiviral agents

Wang,Chen,Tzeng

, p. 1201 - 1213 (2007/10/02)

A series of acyclic nucleosides have been synthesized. Thymine, 6- azathymine, uracil, and 6-azauracil were silylated with hexamethyldisilazane in the presence of ammonium sulfate and then coupled with 1-benzyloxy-2- chloromethoxypropane to give the corresponding 1-(1-benzyloxy-2- propoxy)methyl derivatives. A minor quantity of benzyloxymethylated product was also obtained in each case. Hydrogenolysis of the protected acyclic nucleosides with palladium(II) hydroxide afforded the title compounds. None of the compounds exhibited significant antiviral activity against human immunodeficiency virus (HIV).

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